State law states that Democrats and Republicans need only two signatures to be on the ballot. Independent and third party candidates must collect a minimum of 5,000 signatures before the Aug. 12 deadline.

Libertarian Party Chair Ken Moellman said they have verified approximately 5,700 signatures using a voter registration database.

"We know we have that many," he said. "You always turn in more you need, so we're very comfortable with that cushion."

Libertarian Party leaders have stressed Patterson shouldn't be viewed as a spoiler for either of the two major party candidates.

"This campaign is here to win, not to 'take' votes," Patterson said in a release last Tuesday. "A vote for Patterson is for Patterson. Period."

In the latest Bluegrass Poll, Patterson's entry in the race had no effect on the margin between Grimes and McConnell.